Year	% of working-age population
1960	58.62790043563286
1961	58.33134128951978
1962	57.930443938203055
1963	57.73403037032384
1964	57.784480369081
1965	58.04485674723211
1966	58.45107706701366
1967	58.84352028366151
1968	59.13170850082913
1969	59.40725648252373
1970	59.609435485199405
1971	59.71517533101803
1972	59.811623205778076
1973	59.885126562221835
1974	59.93221079025075
1975	59.94792818352143
1976	59.85204913379024
1977	59.675160654370366
1978	59.4261295364406
1979	59.0420650349481
1980	58.53943889823856
1981	57.94972518602821
1982	57.38958443938868
1983	56.82802916513767
1984	56.102853484384994
1985	55.58618767162654
1986	55.24762817644795
1987	54.7826025878523
1988	54.456708711388465
1989	54.391156068751876
1990	54.43898026998508
1991	54.54180849902654
1992	54.687352265058585
1993	54.76388050423269
1994	54.79202048562701
1995	54.83674807536705
1996	54.88407739862782
1997	54.87165622741169
1998	54.724539898935056
1999	54.49810509330836
2000	54.2434254587668
2001	53.93798078431533
2002	53.56181135640582
2003	53.15470193262924
2004	52.75784546005563
2005	52.32385512254331
2006	51.79869986688601
2007	51.2708231544451
2008	50.924147544553556
2009	50.89929080496481
2010	51.04241388492947
2011	51.22796883043289
2012	51.44933287503354
2013	51.67558722665389
2014	51.892674059605945
2015	52.109912080889096
2016	52.42226623671969
2017	52.8243424560298
2018	53.20071110249728
2019	53.45466284074606
2020	53.70683930753168
2021	53.99933141832711
2022	54.184789150073655
2023	54.270044981969754